Add Serena Williams to the list of big names eliminated early at this unpredictable Wimbledon.

The defending champion failed to close out a see-saw third set Monday, dropping the last four games against Sabine Lisicki of Germany to lose 6-2, 1-6, 6-4 in the fourth round and end her career-best 34-match winning streak.

Formula One found itself in the midst of a crisis Monday following a British Grand Prix in which several drivers, including race leader Lewis Hamilton and Ferrari's Felipe Massa, nearly crashed after their tires exploded as they raced around the circuit.

The sight of large chunks of debris showering down on cars and, in one case, a huge strip of rubber flying across the track prompted several current and former drivers to call into question the sport's bid this season to try and make it more exciting.

Mothers and fathers aren't the only ones urging adult children to visit their parents. China's lawbooks are now issuing the same imperative.

New wording in the law requiring people to visit or keep in touch with their elderly parents or risk being sued came into force Monday, as China faces increasing difficulty in caring for its aging population.

U.N. health officials are urging Asian governments to get rid of what they say are punitive laws that hinder the battle against HIV and AIDS by discriminating against high-risk groups and deterring them from seeking treatment.

Steven Kraus, the UNAIDS director for Asia and the Pacific, said laws that punish same-sex activities and impose harsh drug sentences have prompted a rise in new transmissions in parts of Asia.

An American doctor has arrived in Vietnam carrying an unlikely piece of luggage: the bones of an arm he amputated in 1966.

Dr. Sam Axelrad flew into the Vietnamese capital, Hanoi, on Saturday from Houston. He was traveling through central Vietnam with his sons and two grandchildren Monday to meet the amputee, Nguyen Quang Hung, a former North Vietnamese soldier.

At least 19 firefighters were killed Sunday battling a fast-moving wildfire in Arizona, in one of the worst incidents of its kind in U.S. history, as flames ravaged homes and forced the evacuation of two towns.

The firefighters died while racing to contain the Yarnell Hill wildfire about 85 miles (135 kilometers) north of Phoenix, in what Arizona governor Jan Brewer called "as dark a day as I can remember."

Bahrain's foreign minister on Sunday urged Iran's newly elected president to seek the withdrawal of Hizbullah fighters from Syria as a gesture to try to ease the civil war there.

The appeal by Sheikh Khalid bin Ahmed al-Khalifa, during meetings between the European Union and Gulf Arab foreign ministers, showed the widening shadow of Syria's 27-month conflict that has spilled across borders, involving Lebanon, Jordan and Turkey in varying degrees.

A charter helicopter carrying a family of four Swedes on a sightseeing tour of New York City lost power shortly after takeoff Sunday and made an emergency landing on the Hudson River, authorities said. The pilot and occupants were uninjured.

The helicopter landed shortly before noon in the section of the river near 79th Street by the New York City Marina.

For a day, they were the pair who ran Roger Federer and Maria Sharapova out of town.

And then, suddenly, he was plain ol' 116th-ranked Sergiy Stakhovsky again and she was 131st-ranked Michelle Larcher de Brito.

Going into its home race still struggling to overcome the myriad of problems with its Formula One car, McLaren knows that the 2013 season is practically out of reach and is looking ahead to 2014.

Team Principal Martin Whitmarsh told The Associated Press Friday that it has been a season filled with disappointment for one of the sport's marquee franchises and that he was not expecting much from this weekend's British Grand Prix — a race that draws huge numbers of fans to see Jenson Button and other British drivers race.